Viva Media’s Crazy Machine is now available at the Macgamestore (http://www.macgamestore.com) It requires Mac OS X 10.6 or higher and costs US$9.95.

Here’s how the game is described: “Turn the crank, rotate the gears, push the levers, Use the catapult, explode it, or fly it. From grilling sausages with a pulley, gears, rubberbands and a candle to firing a cannon with a basketball, these wacky brain-teasers will light up your imagination with creative and addictive fun.”

Crazy Machine has over 70 elements and 200-plus challenges. It also boasts 3D graphics and real time shadows.